This set of Artificial Intelligence Multiple Choice Questions & Answers (MCQs) focuses on “Fuzzy Logic”.

1. What is the form of Fuzzy logic?

a) Two-valued logic

b) Crisp set logic

c) Many-valued logic

d) Binary set logic

View Answer

Explanation: With fuzzy logic set membership is defined by certain value. Hence it could have many values to be in the set.

2. Traditional set theory is also known as Crisp Set theory.

a) True

b) False

View Answer

Explanation: Traditional set theory set membership is fixed or exact either the member is in the set or not. There is only two crisp values true or false. In case of fuzzy logic there are many values. With weight say x the member is in the set.

3. The truth values of traditional set theory is ____________ and that of fuzzy set is __________

a) Either 0 or 1, between 0 & 1

b) Between 0 & 1, either 0 or 1

c) Between 0 & 1, between 0 & 1

d) Either 0 or 1, either 0 or 1

View Answer

Explanation: Refer the definition of Fuzzy set and Crisp set.

4. Fuzzy logic is extension of Crisp set with an extension of handling the concept of Partial Truth.

a) True

b) False

View Answer

Explanation: None.

5. The room temperature is hot. Here the hot (use of linguistic variable is used) can be represented by _______

a) Fuzzy Set

b) Crisp Set

c) Fuzzy & Crisp Set

d) None of the mentioned

View Answer

Explanation: Fuzzy logic deals with linguistic variables.

6. The values of the set membership is represented by ___________

a) Discrete Set

b) Degree of truth

c) Probabilities

d) Both Degree of truth & Probabilities

View Answer

Explanation: Both Probabilities and degree of truth ranges between 0 – 1.

7. Japanese were the first to utilize fuzzy logic practically on high-speed trains in Sendai.

a) True

b) False

View Answer

Explanation: None.

8. Fuzzy Set theory defines fuzzy operators. Choose the fuzzy operators from the following.

a) AND

b) OR

c) NOT

d) All of the mentioned

View Answer

Explanation: The AND, OR, and NOT operators of Boolean logic exist in fuzzy logic, usually defined as the minimum, maximum, and complement;

9. There are also other operators, more linguistic in nature, called __________ that can be applied to fuzzy set theory.

a) Hedges

b) Lingual Variable

c) Fuzz Variable

d) None of the mentioned

View Answer

Explanation: None.

10. Fuzzy logic is usually represented as ___________

a) IF-THEN-ELSE rules

b) IF-THEN rules

c) Both IF-THEN-ELSE rules & IF-THEN rules

d) None of the mentioned

View Answer

Explanation: Fuzzy set theory defines fuzzy operators on fuzzy sets. The problem in applying this is that the appropriate fuzzy operator may not be known. For this reason, fuzzy logic usually uses IF-THEN rules, or constructs that are equivalent, such as fuzzy associative matrices.

Rules are usually expressed in the form:

IF variable IS property THEN action

11. Like relational databases there does exists fuzzy relational databases.

a) True

b) False

View Answer

Explanation: Once fuzzy relations are defined, it is possible to develop fuzzy relational databases. The first fuzzy relational database, FRDB, appeared in Maria Zemankova dissertation.

12. ______________ is/are the way/s to represent uncertainty.

a) Fuzzy Logic

b) Probability

c) Entropy

d) All of the mentioned

View Answer

Explanation: Entropy is amount of uncertainty involved in data. Represented by H(data).

13. ____________ are algorithms that learn from their more complex environments (hence eco) to generalize, approximate and simplify solution logic.

a) Fuzzy Relational DB

b) Ecorithms

c) Fuzzy Set

d) None of the mentioned

View Answer

Explanation: Local structure is usually associated with linear rather than exponential growth in complexity.

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